The New Age of Maritime Multilateralism in the Indian Ocean

Why It Matters

The evolving power balance reshapes trade routes, defense spending, and regional stability, forcing all actors to rethink partnership strategies in a volatile Indian Ocean arena.

Key Takeaways

• China invests in 17 Indian Ocean ports.
• India rebrands as preferred security partner.
• Small states diversify via overlapping security frameworks.
• US, Japan, Australia open new diplomatic missions.
• Polycentric order remains fragile and institutionally weak.

Pulse Analysis

The Indian Ocean’s strategic relevance has surged as external powers vie for influence over its critical sea lanes. While the United States and its allies have opened embassies and signed defence pacts, China’s rapid expansion—spanning ports, bases, and diplomatic outreach—sets the tempo for regional competition. This dynamic forces traditional actors like India to recalibrate, shifting from unilateral interventions to collaborative, multilateral initiatives that emphasize capacity‑building and shared maritime domain awareness.

For the smaller littoral states, the crowded security landscape offers both opportunity and risk. Nations such as the Maldives and Sri Lanka are crafting polycentric alignment strategies, signing agreements with the United States, Japan, China, Australia, and Gulf partners while participating in forums like IORA, IONS, and the Colombo Security Conclave. By leveraging overlapping frameworks, they extract economic benefits, enhance surveillance capabilities, and preserve strategic autonomy, even as they navigate climate‑driven challenges and vast exclusive economic zones.

India’s quiet leadership underscores a pragmatic turn toward issue‑based multilateralism. Through initiatives like SAGAR, MAHASAGAR, and the Quad, New Delhi promotes a "free, open, and inclusive" Indo‑Pacific while avoiding overt anti‑China rhetoric in regional gatherings. Strengthening institutional mechanisms—such as the Indian Ocean Naval Symposium and the Information Fusion Centre—aims to institutionalise cooperation and mitigate political volatility. Ultimately, the region’s stability hinges on resilient, functional multilateral platforms that can absorb shocks and sustain collective security amid competing great‑power ambitions.